The Senate Leadership Fund released a new ad on Tuesday attacking Kelli Ward, the primary opponent of Sen. Jeff Flake, R-Ariz., for her "crazy ideas."

The group, which is backed by Senate Majority Leader Mitch McConnell, R-Ky., released a new digital ad calling her "Chemtrail Kelli." It is spending $10,000 on the ad, The Washington Examiner reported.

The ad slams her "embarrassing behavior" as a state senator and during her primary challenge against Sen. John McCain, R-Ariz., last year, according to the Examiner.